Posted By
Litwr
on 2015-01-06
09:52:38
|  Re: World of Commodore 2014 pictures, video, reports
C128 is the biggest success of any CP/M comaptible machine
IMHO C128 success was caused by other reasons. z80 and cp/m in it is like the fifth wheel at the coach.  The most successful cp/m machine is Amstrad PCW series. I've read that they still used somewhere. I worked with PCW 8256/9512 - they are true CP/M machines and good text processors. Only the printer with 8256 was a bit odd.
VIC-2 can't be used for 80 columns screen that makes it useless for cp/m. VDC is very powerful thing, it may use up to 64 kb video RAM and it doesn't need badlines - c128 vdc demo.
14 cycles, resulting ~142KB/sec copy speed
there is an obvious error, there are 13-14 cycles and 72-78 KB/s. So in this case z80 is faster. However 6502 1MHz overall performance is close to 2.4 Mhz z80 without wait states.
CPC with 4MHz+128K is faster
it is much faster and better for cp/m... But PCW is the best CP/M machine.
the big transport company
if they used CP/M only then it was the waste of money and ineffective (slow) work.
SVS, could you provide more details for the presented card? Is it for +4?
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